"Sugar" Shane Mosley (46-5, 39 KOs) challenged Floyd "Pretty Boy" Mayweather Jr. (40-0, 25 KOs) on May 1st in Vegas but lost. Mayweather remains undefeated. Results of the main event as well as of the undercard fights are available here.

Photo by Cory Olsen | The Grand Rapids Press
Main Event
Photo by Cory Olsen | The Grand Rapids Press
Main Event
- Mayweather vs Mosley - Winner: Mayweather
- Saul Alvarez (31-0-1, 23 KOs) vs Jose Miguel Cotto (31-1-1, 23 KOs) - Winner: Alvarez
- Daniel Ponce de Leon (38-2-0, 32 KOs) vs Cornelius Lock (19-4-1, 12 KOs) - Winner: Ponce de Leon
- Hector David Saldivia (33-1-0, 26 KOs) vs Said Ouali (26-3-0, 18 KOs) - Winner: Ouali